Bummed!!!

Kellie • Mother of three and currently ttc #4 due to health issues my chances are starting to shorten every day! Staying positive and wishing everyone lots of baby dust
Me and my SO has been split up for only a few weeks and a very close make friend of mines kinda took advantage of my situation. I always confined in him he's been around for at least 7 years as a friend my SO had met him the while nine.. Anywho I confine into him two nights ago one thing lead to another and he performed oral sex on me. It didn't go any farther as I felt terrible even letting that happen.. And maybe only because I still love my SO he's still I wanted! But just this morning I get a text and he tells me he had hepatitis. I think he said hepatitis C. Now I'm completely bummed! Why didn't he tell me this before.. And what the hell this is my life my health we are talking about. I don't know how to feel.. I did a little bit of research but could anyone give me a little insight and how do I tell him I am scared and mad at the same time without being irate or saying the wrong thing? I'm really bummed...